Hi, You should to study the syslog of node 1,2,3,4. Why they disconnect with node 5, may be they emergency restarted for disconnection with storage, or TCP channels. The storage connected with them should be stable for disk heartbeat. May be the TCP connections or storage connections(such as IP/FC SAN). ------------------------------------------------------------------------------------------------------------------------------------- ???????????????????????????????????????? ???????????????????????????????????????? ???????????????????????????????????????? ??? This e-mail and its attachments contain confidential information from H3C, which is intended only for the person or entity whose address is listed above. Any use of the information contained herein in any way (including, but not limited to, total or partial disclosure, reproduction, or dissemination) by persons other than the intended recipient(s) is prohibited. If you receive this e-mail in error, please notify the sender by phone or email immediately and delete it! -------------- next part -------------- An HTML attachment was scrubbed... URL: http://oss.oracle.com/pipermail/ocfs2-users/attachments/20151222/70dc0900/attachment.html